Combustion and emission characteristics of multi-source biomass/coal gasification fine slag composite pelletized fuels at high heating rates

GUO Shengjun; LEI Mengying; LIN Hao; YAO Hao; LI Rui; SHI Zhaochen; LI Zhan; ZHANG Xiaopan; PU Jing; DENG Shuanghui; WANG Xuebin

doi:10.13205/j.hjgc.202607004

Volume 44 Issue 7

Jul. 2026

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2026 > 44(7): 34-41

GUO Shengjun, LEI Mengying, LIN Hao, YAO Hao, LI Rui, SHI Zhaochen, LI Zhan, ZHANG Xiaopan, PU Jing, DENG Shuanghui, WANG Xuebin. Combustion and emission characteristics of multi-source biomass/coal gasification fine slag composite pelletized fuels at high heating rates[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(7): 34-41. doi: 10.13205/j.hjgc.202607004

Citation:

GUO Shengjun, LEI Mengying, LIN Hao, YAO Hao, LI Rui, SHI Zhaochen, LI Zhan, ZHANG Xiaopan, PU Jing, DENG Shuanghui, WANG Xuebin. Combustion and emission characteristics of multi-source biomass/coal gasification fine slag composite pelletized fuels at high heating rates[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(7): 34-41. doi: 10.13205/j.hjgc.202607004

Citation:

GUO Shengjun, LEI Mengying, LIN Hao, YAO Hao, LI Rui, SHI Zhaochen, LI Zhan, ZHANG Xiaopan, PU Jing, DENG Shuanghui, WANG Xuebin. Combustion and emission characteristics of multi-source biomass/coal gasification fine slag composite pelletized fuels at high heating rates[J]. ENVIRONMENTAL ENGINEERING , 2026, 44(7): 34-41. doi: 10.13205/j.hjgc.202607004

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Combustion and emission characteristics of multi-source biomass/coal gasification fine slag composite pelletized fuels at high heating rates

doi: 10.13205/j.hjgc.202607004

1. Zhongke (Guandong) Refinery & Petrochemical Company Limited, Zhanjiang 524000, China;
2. School of Energy and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Received Date: 2025-11-20
Available Online: 2026-09-01

Abstract

Abstract

Pelletizing technology has been widely used in the field of biomass and coal fuel processing. Pelletized fuel offers advantages such as easy transportation and storage， as well as high energy density. Coal gasification fine slag， a carbon-rich coal-based solid waste， holds considerable application potential. In this study， gasification fine slag was blended with biomass to prepare centimeter-scale composite pellets. The pelletized fuels were formed under a pressing pressure of 6 MPa at room temperature for 2 minutes. A self-developed flat-flame macro-thermogravimetric combustion reactor was employed to simulate practical combustion conditions using high-temperature flue gas at high heating rates. This study focused on the effects of different biomass types and blending ratios （0 to 100%） on the combustion characteristics and emission behavior of the pelletized fuel. The experimental results demonstrated that differences in the chemical composition of biomass types significantly influenced the combustion process. Furthermore， the introduction of biomass modified the fuel particle composition， which markedly enhanced the combustion rate of single-component fuel particles and reduced NO _x and CO emissions during co-combustion of the blended fuel. These findings provide critical experimental support for the optimization of clean and efficient solid fuel production through the coupling of gasification fine slag and biomass.
- coal gasification fine slag,
- biomass,
- pelletized fuel,
- macro-thermogravimetric,
- flue gas emission

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References(21)

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